Contact Lens Optical Structure for Head-Mounted Display Field of View
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Solution Overview
Problem
Existing head-mounted display devices for virtual and augmented reality have limited field of view due to the restrictive nature of existing eye tracking technologies, which only track relative eye movement and do not effectively expand the field of view.
Innovation Solution
A head-mounted display device and contact lens with multiple optical structure layers, where the first optical structure layer is divided into partitions with different structural bodies that generate multiple optical signals, and the second optical structure layer overlaps with the first to transmit these signals to a target area, allowing for enhanced dispersion capabilities and expanded field of view.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If existing eye tracking technology is used to track relative eye movement, then the tracking function is achieved, but the field of view expansion is limited
Solution Approach 1:
The contact lens is divided into multiple partitions, with each partition containing structural bodies that receive optical signals from different positions. This segmentation allows the system to expand the field of view by capturing light from multiple directions simultaneously, resolving the contradiction between field of view expansion and system complexity
Solution Approach 2:
The patent introduces a spatial dimension solution by using a contact lens with multiple optical structure layers and partitions arranged in different positions. Instead of tracking eye movement in one dimension, the system captures optical signals from multiple spatial positions simultaneously, effectively expanding the field of view without requiring complex tracking mechanisms
2Adaptability or versatility
If a single optical structure layer is used in the contact lens, then the device structure is simple, but the dispersion capability is insufficient
Solution Approach 1:
Different partitions of the contact lens are equipped with structural bodies having different structures, providing locally optimized dispersion capabilities for different regions. This allows each partition to handle specific optical signals effectively, enhancing overall adaptability while maintaining a manageable structural complexity through functional specialization
3Area of stationary object
If the contact lens receives optical signals at multiple positions, then the field of view is expanded, but the optical signal processing becomes more complex
Solution Approach 1:
The contact lens acts as an intermediary device that directly processes optical signals from multiple positions through its partitioned structure. By incorporating the signal processing functionality into the lens itself rather than requiring separate tracking and processing systems, the patent expands the field of view while minimizing additional system complexity
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution effectively expands the displayed field of view by utilizing structural bodies with different structures in the contact lens, providing varying dispersion capabilities to improve sight coverage, even when the user's eyeball moves, without requiring changes in the projection direction of the image projector.
Implementation Method 1
different dispersion capabilities are provided by the structural bodies with different structures
Implementation Method 2
The structural bodies receive the optical signal and generate a plurality of imported optical signals
Implementation Method 3
The second optical structure layer and the first optical structure layer are overlapped, and configured to transmit the imported optical signals to a target area
Data Source
AI summary
A contact lens, suitable for a head-mounted display device, includes a first optical structure layer, a second optical structure layer and a third optical structure layer. The first optical structure layer receives an optical signal, wherein the first optical structure layer is divided into a plurality of partitions, and the partitions respectively have a plurality of structural bodies with different structures, and the structural bodies receive the optical signal and generate a plurality of imported optical signals. The second optical structure layer and the first optical structure layer are overlapped, and configured to transmit the imported optical signals to the third optical structure layer. The third optical structure layer and the second optical structure layer are overlapped, and configured to transmit the imported optical signals to a target area.